技术-经济因素对天然气分布式能源系统经济性影响分析  

Study on the influence of technical and economic factors on the economy of a natural gas distributed energy system

作　　者：冯乐军 付志浩 刘锋[1] 龚雨桐 李艺敏 韩东江[1] 隋军[1] FENG Lejun;FU Zhihao;LIU Feng;GONG Yutong;LI Yimin;HAN Dongjiang;SUI Jun(Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]中国科学院工程热物理研究所,北京100190

出　　处：《综合智慧能源》2022年第10期65-70,共6页Integrated Intelligent Energy

基　　金：国家自然科学基金项目(52006215)。

摘　　要：天然气分布式能源系统通过冷热电三联供等方式实现能源的梯级利用,具有节能、经济、环保的优点。以静态投资回收期为经济性评价指标,从技术和经济角度分析了各个参数对天然气分布式能源系统经济性的影响规律。通过灵敏度分析,确定节能率、投资成本、运行时长和气电价格比为主要影响因素。以投资回收期为优化目标,分析了各个主要参数在不同投资回收期下的边界,可为天然气分布式能源系统实际项目的运行和政策制定提供指导。A natural gas distributed energy system can realize the cascade utilization of energy by providing cooling,heating and electric power.Its advantages include energy saving,economy and environmental protection.Taking static payback period as its economy evaluation index,the influence of various parameters on the economy of a distributed energy system is analyzed from the technical and economic perspectives.Through sensitivity analysis,energy saving rate,investment cost,operating time and gas-electricity price ratio are taken as the main factors.Taking payback period as the optimization objective,the boundary of each main parameter under different payback periods is analyzed,which provides guidance for the actual projects and policy making of distributed energy systems.

关 键 词：天然气分布式能源系统 冷热电三联供 能源梯级利用 发电效率 气电价格比 静态投资回收期 

分 类 号：TK019[动力工程及工程热物理] TM611[电气工程—电力系统及自动化]